21000401289

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4016141}}^1$

素因数の和:4016237

約数の個数: 24

約数和(自身を含む): 35085016512

約数和(自身を除く): 14084615223

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 4016141, 12048423, 28112987, 36145269, 84338961, 253016883, 333339703, 1000019109, 2333377921, 3000057327, 7000133763, 21000401289]

約数ペア:

[(1, 21000401289), (3, 7000133763), (7, 3000057327), (9, 2333377921), (21, 1000019109), (63, 333339703), (83, 253016883), (249, 84338961), (581, 36145269), (747, 28112987), (1743, 12048423), (5229, 4016141)]